| 000 | 00338nam a2200121Ia 4500 | ||
|---|---|---|---|
| 100 | _aNational Council of Educational Research & Training | ||
| 942 | _cBK | ||
| 245 | _aTeaching of science in secondary schools | ||
| 260 |
_aNew Delhi _bPublication Dept. NCERT _c1982 |
||
| 082 |
_a375.5 _bNCERT |
||
| 300 | _axii,250(2) | ||
| 546 | _aEnglish | ||
| 999 |
_c333550 _d333550 |
||
| 041 | _aeng | ||